//
//  UIImage+Extension.m
//  成品家经纪人
//
//  Created by aaa on 16/8/20.
//  Copyright © 2016年 成品家（北京）网络科技有限公司. All rights reserved.
//

#import "UIImage+Extension.h"

@implementation UIImage (Extension)

+(UIColor *) hexStringToColor: (NSString *) stringToConvert
{
    NSString *cString = [[stringToConvert stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] uppercaseString];
    // String should be 6 or 8 characters
    
    if ([cString length] < 6) return [UIColor blackColor];
    // strip 0X if it appears
    if ([cString hasPrefix:@"0X"]) cString = [cString substringFromIndex:2];
    if ([cString hasPrefix:@"#"]) cString = [cString substringFromIndex:1];
    if ([cString length] != 6) return [UIColor blackColor];
    
    // Separate into r, g, b substrings
    
    NSRange range;
    range.location = 0;
    range.length = 2;
    NSString *rString = [cString substringWithRange:range];
    range.location = 2;
    NSString *gString = [cString substringWithRange:range];
    range.location = 4;
    NSString *bString = [cString substringWithRange:range];
    // Scan values
    unsigned int r, g, b;
    
    [[NSScanner scannerWithString:rString] scanHexInt:&r];
    [[NSScanner scannerWithString:gString] scanHexInt:&g];
    [[NSScanner scannerWithString:bString] scanHexInt:&b];
    
    return [UIColor colorWithRed:((float) r / 255.0f)
                           green:((float) g / 255.0f)
                            blue:((float) b / 255.0f)
                           alpha:1.0f];
}

//核心绘图将color变成图片
+(UIImage *)imageWithBgColor:(UIColor *)color {
    
    CGRect rect = CGRectMake(0.0f, 0.0f, 1.0f, 1.0f);
    
    UIGraphicsBeginImageContext(rect.size);
    
    CGContextRef context = UIGraphicsGetCurrentContext();
    
    CGContextSetFillColorWithColor(context, [color CGColor]);
    
    CGContextFillRect(context, rect);
    
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    
    UIGraphicsEndImageContext();
    
    return image;
    
}
+ (CGSize)boundSizeWithTitle:(NSString *)text font:(UIFont *)font size:(CGSize)size
{
        return [self boundSizeWithTitle:text font:font size:size lineSpacing:100000];
}

+ (CGSize)boundSizeWithTitle:(NSString *)text font:(UIFont *)font size:(CGSize)size lineSpacing:(CGFloat)lineSpace
{
    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
    [paragraphStyle setLineSpacing:lineSpace];
    NSDictionary *attribute;
    if (lineSpace == 100000)
    {
        attribute = @{NSFontAttributeName: font};
    }
    else
    {
        attribute = @{NSFontAttributeName: font ,NSParagraphStyleAttributeName:paragraphStyle};
    }
    CGSize retSize = [text boundingRectWithSize:size
                                        options:
                      NSStringDrawingTruncatesLastVisibleLine |
                      NSStringDrawingUsesLineFragmentOrigin |
                      NSStringDrawingUsesFontLeading
                                     attributes:attribute
                                        context:nil].size;
    
    return retSize;
}
@end
